baber/WOPTO huggingface dataset:
Patent GB-1380376-A (GB)
Title: Catalytic exhaust gas treatment apparatus
IPC: F01N3/32
Filed: 1973-03-12
Abstract: 1380376 Treating exhaust gas CHEMICAL CONSTRUCTION CORP 12 March 1973 [20 March 1972] 11856/73 Heading F1B Apparatus for treating exhaust gas comprises a cylindrical container 20 with a central honeycomb gas passage element 11 and an annular honeycomb gas passage element 21 around the central element, each element comprising a plurality of parallel linear gas passages aligned parallel to the longitudinal axis of the container, at one end of the container an inlet 7 for exhaust gas to the central element and an outlet 26 for gases coming from the annular element and at the other end a passage from the central element to the  annular element which passage contains an inlet for air, the walls of the passages of the central element being coated with a catalyst for reduction of nitrogen oxide to nitrogen and the walls of the passages of the annular element being coated with a catalyst for the oxidation of carbon monoxide and hydrocarbons. Both elements are composed of lithium aluminium silicate, or alumina. The catalyst is zinc, nickel, platinum, copper manganese, vanadium, cobalt, chromium or iron, or a catalytically promoted oxide of one of these elements or a mixture thereof. A preferred combination includes copper, cobalt, nickel and manganese. The central element may be separated from the annular element by a baffle, or the central and annular elements may be parts of a single body in which a number of passages on the periphery of a circle centred on the axis of the body have been filled or plugged at one or both ends with e.g. alumina and insulating cement. Exhaust gas from an engine 3, which may have air 5 mixed with it flows through the inlet 7 and the central element 11 to a chamber defined by a baffle 17, where it is mixed with air issuing from a pipe 16, and then flows through the annular element and through the outlet 26. The elements may be made as a series of circular corrugations or alternate cylindrical and sinuous elements.
Patent GB-1442863-A (GB)
Title: Method of machine milking cows and teat cups for performing the  method
IPC: A01J5/007
Filed: 1974-03-18
Abstract: 1442863 Machine milking method ALFALAVAL AB 18 March 1974 11922/74 Heading AIM A method for machine-milking a cow subjects the gland openings of the teats to the constant vacuum of a milk-discharging system, whilst the teats are massaged at a frequency between 5Hz and 50Hz using electrical pulses or mechanical vibrations. Electrical massage is provided by current pulses between cylindrical teat electrodes mounted in a singlechamber teat-cup. Mechanical massage is provided either by electromagnetically excited spring arms in a single-chamber teat-cup or by the application of pneumatic or hydraulic pressure oscillations to a resilient liner of a double chamber teat-cup.
Patent GB-991023-A (GB)
Title: Process for preparing photosensitive elements
IPC: G03C7/02
Filed: 1962-03-28
Abstract: 991,023. Photographic materials. HORIZONS Inc. March 28,1962 [March 30,1961],No. 11938/62. Drawings to Specification. Heading G2C. A method of preparing a photosensitive element comprises: depositing a first layer on a flat support by applying a solution of a bleach-out polymethine dye and a compound R-C-X 3  where R is H, Cl, Bn, I, alkyl, aryl or substituted alkyl or aryl and each X is C1, Br or I; drying the layer to remove the solvent; optionally depositing a barrier layer on the first layer from a solution of a filmforming plastic and drying the same; coating a second layer on either the first or the barrier layer from a solution of a filmthe first but wherein the dye is sensitive to light of a different wavelength; and drying the second layer, the solvents used being chosen so that there is no intermingling of the first and second layers. A further barrier layer of clean plastic may be deposited on the second layer and a third photosensitive layer may be deposited either above the second layer or on the reverse of the support. Preferably there are three photosensitive layers containing yellow, magenta and cyan dyes so that the element yields a full colour reproduction. The materials themselves are described in Specifications 991,021 and 991,022 and the present invention is concerned with an improved method of preparaing the photosensitive element therefrom to improve the reproducibility of photosensitivity and colour separation from batch to batch. In Examples:- (1 and 2) clear cellulose acetate film is coated with a solution of cyan dye and carbon tetrabromide or pentabromoethane in a mixture of equal volumes of methanol, acetone and dimethylforamide, dried, coated with ethylcellulose in toluene, dried, and then (1) coated with a solution of cyan dye and carbon tetrabromide in toluene, dried, and a solution of yellow dye and carbon tetrabromide in a mixture of methanol, acetone and dimethylformamide applied to the reverse side or (2) coated with a solution of yellow dye and pentabromoethane in toluene, dried, coated with ethylcellulose in toluene, dried and finally coated with a cold solution of magenta dye and pentabromoethane in toluene; and (3) white pigmented cellulose acetate film is successively coated, with intermediate drying, with cyan dye and carbon tetrabromide in a solvent mixture of acetone, methanol and dimethylforamide, with yellow dye, carbon tetrabromide and ethyl cellulose in toluene and with magenta dye, carbon tettrabromlde and ethyl cellulose in toluene.
Patent GB-200619-A (GB)
Title: Improvements in electric plug connectors
IPC: H01R33/94
Filed: 1922-04-29
Abstract: 200,619. Shore, W. E. April 29, 1022. Two-part couplings.-A screw plug connector comprises a central insulating member 1 around which are arranged thread-engaging contact fingers 18 adapted to be expanded simultaneously outwards against the threaded wall of the socket by a longitudinally-movable member 20. The member 1 is formed with longitudinal grooves 2 in which are slidably mounted ribs 12 on a metal sleeve 11. The lower end of this sleeve is formed with a flange 14 by which it is secured to the member 20, and the flange is cut away in line with the ribs 12 forming radial slots 15. The fingers 18 are formed on a metal disc 16 secured to the lower end of the member 1. They are curved transversely and formed with transverse thread corrugations to fit the thread of the socket. The upper ends of the ribs 12 are curved inwardly as shown at 13 and the bevelled ends thus formed serve to expand the fingers 18 against the socket upon movement of the member 20 towards the member 1. One circuit wire is secured to a terminal 25 which is disposed in a slot 5 in the member 1 and is in conducting connection with the disc 16, and the other wire passes through a slot in the member 1 and is secured beneath an end contact washer 9. In a modification, Fig. 7, the member 1 is formed as a metal cylinder 27 carrying at its outer end an insulating cap 28 and at its inner end a flanged plate 29 between which and the disc 16 is secured an insulating bushing 30.
Patent GB-717119-A (GB)
Title: Colloidal solution of mineral oil in water
Inventor: PERLSTROM-LUNDBE GUNVOR VERA M
IPC: D06M13/02
Filed: 1950-05-15
Abstract: Emulsions of mineral oil in water contain the acid reaction product of the condensation product of alkanolamines and fatty acids in amounts of at least 50 per cent. of the weight of the mineral oil, the water content of the solution being 25 to 95 per cent. or more. In a modification, where the fatty acid condensation product is derived from a mixture of 60 to 65 per cent. of a dialkanolamine and 40 to 35 per cent. of a trialkanolamine, this product may be used as such, instead of its acid reaction product.  The acid reaction products may be made by treating the said condensation products with acids such as sulphuric, phosphoric or acetic acids, or with acid salts such as monosodium phosphate, at room temperature or the acid may simply be added to an emulsion of mineral oil, water and the fatty acid-alkanolamine condensation product.  The emulsifiers derived from dialkanolamines only may be used in amounts from 60 to 200 per cent. by weight of the oil, depending on the boiling point of the oil used, but generally about equal weights of emulsifier and oil are used.  The emulsifiers are preferably derived from mixtures of di- and trialkanolamines preferably containing 60 to 70 per cent. to 40 to 45 per cent. of the respective alkanolamines.  Such mixtures may contain 1 to 3 per cent. of monoalkanolamines.  The emulsifiers derived from such mixtures may be used in amounts down to 50 per cent. of the mineral oil.  The condensation products may be derived from 2 mols of lialkanolamine and 1 mol of fatty acid such as coconut fatty acids, but when using mixtures of alkanolamines only 1.75 mols are required per mol of fatty acid.  Clear solutions are obtained when the emulsifiers and mineral oil are dissolved in water and these may be greatly diluted without any separation of phases.  The emulsions may be used in the textile industry as spinning oils and brightening agents.  Specifications 306,116, [Class 2 (iii)], 337,737 and 337,774, [both in Class 1 (i)], and U.S.A. Specifications 2,089,212 and 2,173,058 are referred to.
Patent GB-330069-A (GB)
Title: Improvements in or relating to radiators for heating purposes
IPC: F24D19/06
Filed: 1929-04-18
Abstract: 330,069. Waller, F. N., and Coombe, G. A. April 18, 1929. Radiators.-A dust shield for use with a radiator comprises a canopy B covering the top and sides of the upper portion of the radiator and a filter c extending across the upper portion of the front of the radiator and carried by the canopy. A wall A extends from the canopy to the floor on the side opposite the filter. The canopy and wall are formed from one piece of metal and supported on angle irons. The filter comprises copper gauze C in a frame D hinged to or detachable from the canopy.
Patent GB-1469169-A (GB)
Title: Electrophotographic recording material
IPC: G03G5/06
Filed: 1974-03-19
Abstract: 1469169 Electro-photographic materials HOECHST AG 19 March 1974 [21 March 1973]  12109/74 Heading G2C An electro-photographic material comprises an electrically conductive support and a first layer containing purple to violet dye which is photo-sensitive over the range of 420 to 750 nm and is capable of generating charges and injecting them into a second layer having (a) a pi-electron system of at least 20 electrons (b) a reflectance of 50 per cent or less in the visible range of 420 to 750 nm and (c) an x-value of 0À13 to 0À52 and a Y value of 0À019 to 0À33 according to DIN 5033 and a second layer containing an organic photo-conductor or organic electron acceptor having a lower sensitivity than the dye in the above range and being capable of receiving and transporting charges. Specified dyes are condensation products of perylene 3, 4, 9, 10- tetracarboxylic acids with an aromatic or heterocyclic diamines such as o-phenylene diamine; 1, 8- diamino-naphthalene; 2, 3-diamino-pyridine and 2, 3-diamino-pyrazine or dioxazines. There may be a barrier layer, e.g. polyamide, polyvinylphosphoric acid or aluminium oxide, between support and dye layer. Specified photo-conductors are oxadiazoles, oxazoles, polyvinyl carbazole, polyvinyl anthracene, polyacenaphthalene or formaldehyde/bromopyrene condensates and specified electron acceptors are trinitrofluorenone and 3, 6-dinitro-N-C-butylnaphthalimide. The second layer preferably also has a binder, e.g. polyester or silicone resins, polycarbonates or styrene/ maleic anhydride copolymers, whereas the first layer is generally vacuum deposited.
Patent GB-885922-A (GB)
Title: A device for conveying yarns comprising two rollers, the axes of which are canted
IPC: D01D10/04
Filed: 1958-04-16
Abstract: 885,922. Thread-advancing devices. KUNSTZIJDESPINNERIJ NYMA N.V. April 16, 1958 [April 23, 1957; April 24, 1957], No. 12132/58. Class 120(2) In a device for conveying yarns comprising rollers 1 and 2 of different diameter having canted axes with the maximum distance between the surfaces of the rollers not exceeding the radius of roller 1, the rollers are so positioned that the projection of that portion of roller 2 which is used for conveying yarn on to the plane V passing through the axis of roller 1 and parallel with the axis of roller 2 is wholly at that side of the axis of roller 1 at which the yarn turns leaving roller 2 reach roller 1. Such relative disposition of rollers ensures, for given conditions, effective advance of the yarn from one convolution to the next (i.e. "pitch") with minimum change of pitch. Further, and as explained in a specific example, Fig. 7 (not shown), maximum pitch is obtained when q (the shortest distance between the canted axes) equals:- where p equals the shortest distance from that one of the two extremities of the axis of roller 1 which is further from the axis of roller 2, to the latter axis, and R and r are radii of rollers 1 and 2 respectively. Specification 835,601 is referred to.
Patent GB-1194168-A (GB)
Title: Lamp Turret Assembly with Safety Electrical Interlock.
Inventor: BETLEJEWSKI FRANK WALTER
IPC: F21V19/04
Filed: 1969-03-07
Abstract: 1,194,168. Lamp changing apparatus. BELL & HOWELL CO. 7 March, 1969 [7 March, 1968], No. 12143/69. Heading F4R. A lamp changing turret assembly comprises a lamp turret having two sockets 16 containing an operative lamp 18 and a spare lamp 20, and an actuator arm 30 used to rotate the turret about axis 24 to replace the operative by the spare lamp, the arm being moved manually either directly by means of tab 32 or remotely through linkage 86, assembly 60, and knob 62. In remote operation only one lamp change is possible, the linkage being such that more than one operation of it has no effect on the lamp turret unless the turret is returned manually directly to its initial position. Correct alignment of the bulb in the operative position is ensured by a pin 76 which locks in cut-outs in angle bracket 78 when the bulb is aligned, knob 62 having to be pulled outwardly against a spring to disengage the pin in operation. Disconnection of the power supply during rotation of the turret, or opening of the lamp chamber is achieved by switch 120 operated by push-button 118. Normally this button is pressed by link 110 but withdrawal of knob 62 to turn the turret pulls the switch and its button away from link 110 by means of link 140 thus cutting off the power supply which is restored on releasing knob 62. If the lid of the lamp chamber is opened, link 110 is pulled away from button 118 and again the power is cut-off.
Patent GB-105025-A (GB)
Title: Improvements in Combination Tools.
Inventor: CRELLIN GEORGE NOBLE
IPC: B25F1/00
Filed: 1916-08-29
Abstract: 105,025. Crellin, G. N. Aug. 29,1916 Combinat i o n tools. - A combination tool comprises a pair of pincers a, b on a detachable pivot c, together with h a hammer d, a chisel g, a screwdriver h, a projection f near the hammer to give additional leverage w h e extracting tacks or nails as shown, and a nail extractor i formed by a groove on one handle b, which is used as a lever when the nail has already been extracted by the pincers as far as shown. The jaws a<1>, b<1> of the pincers are provided with projections e, e to get a better grip of a nail, and are grooved at the centre as at j, Fig. 5, on the underside to accommodate the head of the nail.
Patent GB-128052-A (GB)
Title: Improvements in Power Transmission Gear.
Inventor: INSHAW GEORGE RICHARD
IPC: F16H35/02
Filed: 1918-07-29
Abstract: 128,052. Inshaw, G. R. July 29, 1918. Conveying rotary motion.-In means for transmitting motion with cyclic variation of velocityratio, especially applicable to thread-milling machines, a worm C sliding on the driving-shaft D engages a worm-wheel B secured on the shaft A, which may drive the hobbing-cutter or the work, and also engages a different sized idle wheel E. The wheels B, E carry eccentrics F, H, the straps f, h of which are pivoted to levers G pivoted on a strap within which the worm C rotates. As the worm wheels rotate, the worm C is moved longitudinally and varies the speed of the wheel B and shaft A. Other means may be employed to move the worm C on its shaft.
Patent GB-768638-A (GB)
Title: Furnace charge support and diffuser
IPC: C21D9/673
Filed: 1955-04-28
Abstract: 768,638. Heat treatment furnaces; supporting furnace charges. WILSON, L. April 28, 1955 [May 3, 1954], No. 12325/55. Class 51 (2). In a bell-type annealing furnace B in which coiled metal strip is heated within an inner cover C by forced circulation of the atmosphere gas by a centrifugal fan 15, eddy currents or spiral movements of the atmosphere gas causing pick-up of sand from the inner cover seal 29 are inhibited by a combined charge support and diffuser member S.. The latter comprises a coil-supporting plate 34 formed with a central opening 35 for the passage of the gas to the fan 15, an outer rim 33, a base-plate 31 formed with an opening 32 for the fan shaft 14 main diffuser vanes V and auxiliary diffuser vanes V<SP>1</SP>. The vanes V have inner portions 36 with their ends lying- substantially on a circle and so disposed that adjacent vanes form outwardly-diverging, curved passages 37, and have outer portions 40 curved reversely relative to the inner portions so that gas blown by the fan is delivered substantially radially through an annular slot 39 between the outer edge of the top plate 34 and the rim 33. The angle of divergence of the passages 37 is approximately 7 degrees. The vanes V<SP>1</SP> are disposed substantially midway between adjacent outer portions 40 and are similarly curved thereto. Both sets of vanes may be welded to the bottom plate 31 and to the rim 33. Radiant heating tubes 2 supplied with fuel gas from a manifold 5 and with air from a manifold 6 are disposed around the inner wall of the furnace B.
Patent GB-783521-A (GB)
Title: Heat-transfer wall structures
Inventor: HODGE RONALD INGLIS
IPC: F23R3/00
Filed: 1954-04-29
Abstract: 783,521. Generating combustion products under pressure. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. April 18, 1955, [April 29, 1954], No. 12425/54. Class 51 (1). [Also in Group XIII] In a wall structure which is exposed to heat on one side and is cooled on the other side, for example a flame tube of a gas turbine combustion chamber, a plurality of heat-resistant plates is secured in juxtaposition to form at least part of the wall surface on the heated side of the wall, each plate having a single fin integral therewith extending away from the plate on the cooled side of the wall, each plate being supported by structure which is shielded from the heat by the plates. A portion of a combustion chamber is shown in Fig. 2 and comprises an outer air casing wall 5 and a flame tube comprising a perforated wall 3. Hexagonalshaped plates 1a are mounted in juxtaposition on the inner surface of the flame tube wall 3 and fins in the form of stems 2a integral with the plates project through the perforations 3a in the wall 3 and abut against the outer wall 5. In a second embodiment the perforated flame tube wall 3 is dispensed with, the flame tube wall being formed solely by the hexagonal plates 1a. The sides of the plates 1a may abut and may be welded along adjacent edges ; alternatively narrow clearances may be provided therebetween. The plates may also be of square or triangular shape and the fins may be of conical shape or of star-shaped section to increase the heat transfer area.
Patent GB-529839-A (GB)
Title: Sulphur polymerized chloroprene
IPC: C08F2/22
Filed: 1939-04-25
Abstract: 529,839. Synthetic rubber compositions. DU PONT DE NEMOURS & CO., E. I. April 25, 1939, Nos. 12448 and 12449. Convention dates, April 26, 1938, and June 29, 1938. [Class 70] [Also in Group IV] Rubber substitutes are obtained by emulsifying chloroprene, bromoprene or hydrocarbonsubstituted haloprenes, e.g. 2-chloromethyl-3- butadiene-1:3 in aqueous medium and polymerizing the dispersed compounds in the presence of sulphur. A small proportion of a watersoluble alcohol or ketone, such as cyclohexanol, may be incorporated in the emulsion ; the sulphur may also be dissolved in the chloroprene or the like before it is dispersed. The polymerization is continued until a product of the desired properties is obtained and is then arrested by adding a polymerization inhibitor, e.g. phenyl-#-naphthylamine. Sodium oleate, sodium abietate, and sodium salts of sulphated long chain fatty alcohol, are among the emulsifying agents specified. The polymerization may be accelerated by adding catalysts, such as peroxides and persalts, or permanganates, chlorates, and ferricyanides. The polymerization may also be effected in the presence of other polymerizable substances, such as those described in Specifications 468,693, 488,213, 494,748 and 494,752, [all in Group IV]. The products may be plasticized by the subsequent addition of a compound of the general formula R-S-R 1  as described in Specification 529,838. Numerous examples are given showing the effects of different emulsifying agents and plasticizers.
Patent GB-718311-A (GB)
Title: Improvements in methods of and apparatus for cutting materials
IPC: D06H7/22
Filed: 1952-05-16
Abstract: 718,311. Severing by burning. MULLER, A. May 16, 1952, No. 12509/52. Class 31 (I). Apparatus for cutting-out sheet material, which may be in superposed layers, comprises a pair of electrodes arranged one above the material and the other below the material, means for producing an electrical flash-over between the electrodes, and means for moving at least one of the electrodes relatively to the material, whereby the material is divided by a continuous cut along the line of relative movement. The material may be held stationary on a cutting-out table, the surface of which is electrically conductive and serves as a fixed electrode, while the other electrode is movable in a plane parallel to the surface of the table. The material may be cut by a high tension spark, a high-frequency spark discharge, or an arc. Auxiliary electric and magnetic fields may be provided for producing a concentric and rectilinear spark path.
Patent GB-864653-A (GB)
Title: Improvements in and relating to roll winding machines
Inventor: MACKIE JOHN KAY PRINGLE
IPC: B65H54/24
Filed: 1956-04-24
Abstract: 864,653. Winding bobbins. JAMES MACKIE & SONS Ltd. April 23, 1957 [April 24, 1956], No. 12513/56. Class 120(2). The invention relates to the same roll winding machine as described in Specification 864,648 but is concerned with the driving of the roll and also with stop mechanism for disconnecting the drive to the roll. Each winding unit comprises a carriage 22 carrying a centre on which the roll 44 is formed, a traversing scroll member 42 and support means for the supply bobbin 46. The traverse scroll 42 is mounted in bearings 56 and has attached to it a roller 58 having a tyre 60 which is kept in contact with the driving shaft 12 by spring means 38. The roll 44 is carried in pivoted arms 52 and rests on the scroll 42 and is driven thereby so that the roll is not in contact with the driving shaft 12. When winding is proceeding normally, a detector 62 pivotally mounted on the carriage 22 at 64 rests lightly on the yarn between the tensioner 48 and the breast plate 50. Should the yarn break the detector pivots so that a roller 66 on its tail is brought into abutment with rail 13 on which there are a number of ramps 68. As the winding unit continues to travel the roller 66 is caused to travel along the sloping surface 70 of the ramp 68 which action pivots the carriage so as to disengage the tyre 60 from the driving roller 12. Means are also provided for holding the stop motion inoperative which the unit is passing through the various stations described in Specification 864,648.